# Card details changed
This [Issuing](https://www.checkout.com/docs/card-issuing.md) event occurs when you change the details of an issued card.
## Example webhook
```json
{
"id": "evt_az5sblvku4ge3dwpztvyizgcau",
"type": "card_details_changed",
"version": "2.0.0",
"created_on": "2018-04-10T08:13:14Z",
"data":
{
"card_id": "crd_z7clkniyb3ourbpzx2dvl67654",
"cardholder_id": "crh_z7clkniyb3ourbpzx2dvl67654",
"entity_id": "ent_z7clkniyb3ourbpzx2dvl67654",
"card_product_id": "pro_ybfbv7arqzvujjtpzvi2el5dhy",
"type": "physical",
"is_single_use": "false",
"last_four": "1234",
"status": "Active",
"issuing_country": "GB",
"reference": "Reference",
"billing_currency": "GBP",
"metadata": {
"udf1": "metadata1",
"udf2": "metadata2",
"udf3": "metadata3",
"udf4": "metadata4",
"udf5": "metadata5"
},
"expiry_month": 11,
"expiry_year": 2028,
"revocation_date": "2027-03-12",
"created_on": "2018-04-10T08:12:14Z"
}
}
```
---
## Webhook fields
| Field name | Description |
| --- | --- |
| `card_id`
`string` | The card's unique Checkout.com identifier. |
| `cardholder_id`
`string` | The unique Checkout.com identifier of the cardholder for whom the card was created. |
| `entity_id`
`string` | The unique Checkout.com identifier of the client entity for which the card was created. |
| `card_product_id`
`string` | The unique Checkout.com identifier of the card product in which the card was created. |
| `type`
`string` | The card type. This can be one of:
- `physical`
- `virtual` |
| `is_single_use`
`boolean` | Specifies if the card is single use. |
| `last_four`
`string` | The last four digits of the card number. |
| `status`
`string` | The status of the card. This can be one of:
- `Inactive`
- `Active`
- `Suspended`
- `Revoked` |
| `issuing_country`
`string` | The two character [ISO country code](https://www.checkout.com/docs/developer-resources/codes/country-codes.md) of the card account range. |
| `reference`
`string` | The card's reference. |
| `billing_currency`
`string` | The [three character ISO currency code](https://www.checkout.com/docs/developer-resources/codes/currency-codes.md) of the card account range. |
| `metadata`
`object` | Information about the card's metadata. See the [Metadata](#Metadata) section for more details. |
| `expiry_month`
`integer` | The month the card expires. |
| `expiry_year`
`integer` | The year the card expires. |
| `revocation_date`
`string` | The date for the card to be automatically revoked in the format `yyyy-mm-dd`. This date will always be past the current date. |
| `created_on`
`string` | The date and time when the card was created. |
### Metadata
| Field name | Description |
| --- | --- |
| `udf1`
`string` | User defined field 1 |
| `udf2`
`string` | User defined field 2 |
| `udf3`
`string` | User defined field 3 |
| `udf4`
`string` | User defined field 4 |
| `udf5`
`string` | User defined field 5 |